power chucks

Power chucks 2 QLC-LS and 3 QLK-LS
Dimensions and performance data

 QLC/K brochure
PDF brochure (2.3 MB)
  • 95 % more clamping stroke for workpieces with variations in diameter
  • Easily grip stepped workpieces
  • Available as 2- and 3-jaw versions
  • Innovative (patented) multiple base jaw profile with improved guiding length for greater stability
  • Minimal loss of lubricating grease through gaps and undercuts, because jaw guides are precision ground, reducing maintenance and increasing consistency
  • Nitrided chuck body for longer service life
  • Selected matching highest quality materials are hardened and ground
  • Long maintenance intervals
  • Centrifugal force compensation for highest speeds
  • Base Jaw serrations according to European and US specifications available as standard
 QLCLS

Power chucks 2QLC-LS

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Power chucks 3QLC-LS

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Dimensions and performance data 2QLC-LS / 3QLC-LS

Chuck Size
Type 2QLC-LS / 3QLC-LS 160-30 200-41 250-52 315-71
Dimensions
Outer diameter øA mm 162 210 257 320
Bore øB+0.1 mm 30 41 52 71
Chuck mounting øC mm Z5 Z6 Z8 Z11
Chuck mounting imperial (DIN 6353) D S11 S11 S12 S12
Register Ø of draw tube B2H7 mm 42 65 77 93
Mounting recess EH6 mm 140 170 220 300
Actuator Ø F mm 52 76 91 110
Mounting bolts G M10 x 95 M12 x 100 M16 x 110 M20 x 90
Thread mounting G1 M45 x 2 M68 x 2 M82 x 2 M100 x 2
Puller thread protective sleeve G2 M4 M5 M6 M6
Chuck width net H mm 93 96 110 120
Chuck width gross H1 mm 95 98 112 122
Thread length of mounting bolts J mm 15.7 19 20 25
Thread length of actuator J1 mm 23.4 24 24 24
Base jaw protrusion over chuck face J2 mm 5 5 6 6
Actuator stroke K mm 20 23 27 32
Actuator position K1 mm 20 23 27 32
Pitch circle Ø Mounting bolts L±0.2 mm 104.8 133.4 171.4 235
Pitch circle Ø of protective sleeve L1±0.2 mm 88 96 120 140
Jaw stroke M mm 8 9.4 10.9 13
Position of master jaw Nmax mm 36 43.7 52.9 70.5
Jaw mounting bolts O M12 M12 M16 M16
Distance P1min mm 6 6 8 8
Jaw mounting bolts P1max mm 14 35 40 58
Distance P2min mm 25 25 32 32
Jaw mounting bolts P2max mm 33 54 64 82
Minimum distance P3 mm 19 19 24 24
Minimum distance P4 mm 10 10 10 10
Distance T-nut and serration P5 mm 2.5 2.5 2.5 2.5
Length of serrations P6 mm 45 61 75.5 89
Jaw width Q mm 35 35 45 45
Slot width imperial Q1H7 mm 17 17 21 21
Slot width metric Q1H7 mm 12 14 16 21
Width R mm 6.6 6.6 9.6 9.6
Pitch of serration / imperial T 1/16" x 90° 1/16" x 90° 1/16" x 90° 1/16" x 90°
Jaw mounting metric D MS12 MS14 MS16 MS21
Pitch of serration metric T 1.5 x 60° 1.5 x 60° 1.5 x 60° 1.5 x 60°
Distance from 1st serration T1 mm 1.5 1.5 1.5 1.5
Performance data
Max. actuating force 2QLC-LS Fmax daN 2400 3700 4600 5700
Max. gripping force 2QLC-LS Fspmax daN 3700 6000 7500 10000
Max. actuating force 3QLC-LS Fmax daN 3500 5500 7000 8500
Max. gripping force 3QLC-LS Fspmax daN 5500 9000 11000 15000
Max. speed nmax 1/min 6000 5500 4000 3200
Weight G kg 9 18 31 50
Moment of inertia kgm2 0.028 0.09 0.25 0.6 2
Chuck constants C1 mm 338 539 749 912
C2 mm 208 322 318 509
2QLC-LS C3 kgm 0.05 0.08 0.2 0.36
3QLC-LS C3 kgm 0.08 0.12 0.29 0.54
2QLC-LS C4 daNmin2 0.000026 0.000067 0.00014 0.0002
3QLC-LS C4 daNmin2 0.00004 0.0001 0.0002 0.0003
Ident–Number
Imperial serration 2QLC-LS D169619000 D169621000 D169622000 D169623000
Metric serration 2QLC-LS D169817000 D169818000 D169819000 D169820000
Imperial serration 3QLC-LS D169563000 D169565000 D169566000 D169567000
Metric serration 3QLC-LS D169813000 D169814000 D169815000 D169816000

Linie
Overview QLC / QLK QLC/K-KS QLC/K-LS QLC-AG QLC-KT Flanges / adaptor plates